<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style type="text/css">
        .grid {
            margin: auto;
            width: 500px;
            text-align: center;
        }

        .grid table {
            width: 100%;
            border-collapse: collapse;
        }

        .grid th, td {
            padding: 10;
            border: 1px dashed orange;
            height: 35px;
            line-height: 35px;
        }

        .grid th {
            background-color: orange;
        }

        .grid .book {
            padding-bottom: 10px;
            padding-top: 5px;
            background-color: #F3DCAB;
        }
    </style>
</head>
<body>
<div id="app">
    <div class="grid">
        <div>
            <h1>图书管理</h1>
            <div class="book">
                <div>
                    <label for="id">
                        编号：
                    </label>
                    <input type="text" v-model="id" :disabled="flag">
                    <label for="name">
                        名称：
                    </label>
                    <input type="text" v-model="name">
                    <button @click="handle">提交</button>
                </div>
            </div>
        </div>
        <table>
            <thead>
            <tr>
                <th>编号</th>
                <th>名称</th>
                <th>时间</th>
                <th>操作</th>
            </tr>
            </thead>
            <tbody>
            <tr :key='item.id' v-for='item in books'>
                <td>{{item.id}}</td>
                <td>{{item.name}}</td>
                <td>{{item.date}}</td>
                <td>
                    <a href="" @click.prevent="change(item.id)">修改</a>
                    <span>|</span>
                    <a href="" @click.prevent="del(item.id)">删除</a>
                </td>
            </tr>
            </tbody>
        </table>
    </div>
</div>
<script type="text/javascript" src="js/vue.min.js"></script>
<script type="text/javascript">
    /*
      图书管理-图书列表展示功能
      注意事项：<a href="" @click.prevent>修改</a>
      事件绑定时，可以只添加修饰符，而不绑定事件函数
    */
    var vm = new Vue({
        el: '#app',
        data: {
            name: '',
            id: '',
            flag: false,
            books: [{
                id: 1,
                name: '三国演义',
                date: ''
            }, {
                id: 2,
                name: '水浒传',
                date: ''
            }, {
                id: 3,
                name: '红楼梦',
                date: ''
            }, {
                id: 4,
                name: '西游记',
                date: ''
            }]
        },
        methods: {
            handle: function () {
                if (!this.flag) {
                    var book = {};
                    book.id = this.id;
                    book.name = this.name;
                    book.date = '';
                    this.books.push(book);
                } else {
                    this.books.some((item) => {
                        if (item.id == this.id) {
                            item.name = this.name;
                        }
                        this.flag = false;
                        return true;
                    });
                }
                this.id = '';
                this.name = '';
            },
            change: function (id) {
                this.flag = true;
                var book = this.books.filter(function (item) {
                    return item.id == id;
                })
                this.id = book[0].id;
                this.name = book[0].name;
            },
            del: function (id) {
                var index = this.books.findIndex(function (item) {
                    return item.id == id;
                });
                console.log(index);
                this.books.splice(index,1)
                // this.books = this.books.filter(function (item) {
                //     return item.id != id;
                // })
            }
        }
    });
</script>
</body>
</html>
